# -*- coding: UTF-8 -*-
from typing import List
from leetcode_helper import TestcaseHelper, SolutionBase, Stack


class Solution(SolutionBase):
    # 解题的方法，命名和Leetcode的保持一致即可
    def checkValidString(self, s: str) -> bool:
        def check_stack(s: str) -> bool:
            left_stack = Stack()
            star_stack = Stack()

            for i, ch in enumerate(s):
                if ch == '(':
                    left_stack.push(i)
                elif ch == '*':
                    star_stack.push(i)
                elif ch == ')':
                    if not left_stack.is_empty():
                        left_stack.pop()
                    elif not star_stack.is_empty():
                        star_stack.pop()
                    else:
                        return False

            left_empty = left_stack.is_empty()
            star_empty = star_stack.is_empty()

            if not star_empty and left_empty:
                return True
            elif not left_empty and star_empty:
                return False
            elif left_empty and star_empty:
                return True
            else:
                if left_stack.size() > star_stack.size():
                    return False
                else:
                    while not left_stack.is_empty():
                        left = left_stack.pop()
                        star = star_stack.pop()

                        if int(left) > int(star):
                            return False
                    return True

        return check_stack(s)


if __name__ == '__main__':
    solution = Solution()

    # 按照leetcode的题目说明，将基本的test case填入
    # 每条case的最后一个元素是正确的结果，即期待的结果
    # 使用元组来保存输入的数据，期待的结果
    testcases = [
        ("()", True),
        ("(*)", True),
        ("(*))", True)
    ]

    for case_item in testcases:
        # 获取测试用的case和期待的执行结果
        input1 = case_item[0]
        expect = case_item[len(case_item) - 1]

        exec_result = solution.checkValidString(input1)

        # 判断执行结果，输出提示信息
        check_result = solution.check_result(expect, exec_result)
        TestcaseHelper.print_case(check_result, case_item, exec_result)

